package Thread.Demo14Dead;

/**
 * @Author wangzhipeng
 * @Date 2020-08-21 4:51 下午
 * @Description 多个线程互相抱着对方需要的资源，然后形成僵持
 */

public class DeadLock {
    public static void main(String[] args) {
        MakeUp g1 = new MakeUp(0,"灰姑娘");
        MakeUp g2 = new MakeUp(1,"白雪公主");
        g1.start();
        g2.start();

    }
}

//口红
class Lipstick{

}
//镜子
class Mirror{

}





class MakeUp extends Thread{
    //需要的资源只有一份 用static来保证只有一份
    static Lipstick lipstick = new Lipstick();
    static Mirror mirror = new Mirror();

    int choice;
    String girlName;

    MakeUp(int choice,String girlName){
        this.choice = choice;
        this.girlName = girlName;
    }

    @Override
    public void run() {
        //化妆
        try {
            makeUp();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
    //化妆，互相持有对方的锁，就是需要拿到对方的资源
    private void makeUp() throws InterruptedException {
        if (choice == 0){
            synchronized (lipstick){ //获得口红的锁
                System.out.println(this.girlName+"获得口红的锁");
                Thread.sleep(1000);

            }

            synchronized (mirror){
                System.out.println(this.girlName+"获得了镜子的锁");
            }
        }else {
            synchronized (mirror){ //获得镜子的锁
                System.out.println(this.girlName+"获得口红的锁");
                Thread.sleep(2000);
            }
            synchronized (lipstick){
                System.out.println(this.girlName+"获得了口红的锁");
            }
        }
    }



}
